The US Space Force will conduct the secret mission, however the vehicle will remain an asset of the US Air Force.

ULA said the launch was dedicated to those responding to the coronavirus pandemic.

"We were honoured to partner with the US Space Force to dedicate this mission to first responders, frontline workers, and those affected by COVID-19. It is truly a unique time in our history and I want to thank the entire team for their continued dedication and focus on mission success," said ULA's Gary Wentz.